diff --git a/Xcode/Closures.xcodeproj/project.pbxproj b/Xcode/Closures.xcodeproj/project.pbxproj
index 722162e..ac99f68 100644
--- a/Xcode/Closures.xcodeproj/project.pbxproj
+++ b/Xcode/Closures.xcodeproj/project.pbxproj
@@ -409,7 +409,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				CLANG_ENABLE_MODULES = YES;
-				CODE_SIGN_IDENTITY = "";
+				CODE_SIGN_IDENTITY = "iPhone Developer";
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
@@ -431,7 +431,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				CLANG_ENABLE_MODULES = YES;
-				CODE_SIGN_IDENTITY = "";
+				CODE_SIGN_IDENTITY = "iPhone Developer";
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
diff --git a/Xcode/Closures.xcodeproj/xcshareddata/xcschemes/Closures.xcscheme b/Xcode/Closures.xcodeproj/xcshareddata/xcschemes/Closures.xcscheme
new file mode 100644
index 0000000..5e90385
--- /dev/null
+++ b/Xcode/Closures.xcodeproj/xcshareddata/xcschemes/Closures.xcscheme
@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0900"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "3F7620DD1D849B5000E17BF5"
+               BuildableName = "Closures.framework"
+               BlueprintName = "Closures"
+               ReferencedContainer = "container:Closures.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      codeCoverageEnabled = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "3F7620E61D849B5000E17BF5"
+               BuildableName = "ClosuresTests.xctest"
+               BlueprintName = "ClosuresTests"
+               ReferencedContainer = "container:Closures.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "3F7620DD1D849B5000E17BF5"
+            BuildableName = "Closures.framework"
+            BlueprintName = "Closures"
+            ReferencedContainer = "container:Closures.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "3F7620DD1D849B5000E17BF5"
+            BuildableName = "Closures.framework"
+            BlueprintName = "Closures"
+            ReferencedContainer = "container:Closures.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "3F7620DD1D849B5000E17BF5"
+            BuildableName = "Closures.framework"
+            BlueprintName = "Closures"
+            ReferencedContainer = "container:Closures.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/Xcode/Closures.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/Xcode/Closures.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 3ddf867..0c67376 100644
--- a/Xcode/Closures.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/Xcode/Closures.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
-<dict>
-	<key>BuildSystemType</key>
-	<string>Latest</string>
-</dict>
+<dict/>
 </plist>